The recruiter from AWS reached out to me for an initial telephone interview. This was followed by another technical screening within a week. Questions were quite general and scenario based mainly related to managing difficult situations during production outage, etc. I received an email within couple hours that they would like to have another technical phone interview with senior manager. Again the questions ranged from managing a team and different project management scenarios. After going through 3 telephone interviews, got an email after 1 - 2 weeks for on-site (Herndon, VA) interview with AWS team members. This was a 5 and a half hour interview with 6 different people ranging from TPM, Software Development Manager, etc. It sure was quite intense and you really have to know what you are talking about. Overall it was a positive experience.